Hi Guys,
Thanks for all the replies. I may go with the field unit from SBIG, but a bit exe.
Another alternative would be a 1800va UPS as sold for pc's (142 bucks from MSY). What do people think about this option. Also my current battery pack is 12 amp hour. For a 1800 va UPS does this mean it is 18 amp hour and are the batteries inside a UPS the same as the standard car starter batteries with the same charging and power supply characteristics?
Thanks Paul
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